Mono Thread Risks and Who Should Avoid Them

Mono threads are often described as gentle, but they still involve introducing material into the skin. This page is part of our guide to mono threads.

Possible side effects

• Bruising, swelling, tenderness
• Small lumps or nodules, where threads can be felt
• Infection, including delayed infection
• Skin irregularity or dimpling
• Visible threads in thin skin
• Inflammatory reaction or granulomas
• Temporary or lasting changes in sensation
• Pigmentation changes
• Reaction to the material
• Interference with breast imaging

Who may need to avoid or take extra care

• People with active infection or skin disease at the site
• Those with bleeding disorders or on blood thinners
• Pregnancy and breastfeeding
• People who form keloid or raised scars
• Autoimmune or connective tissue conditions
• Anyone with unexplained breast lumps or unassessed symptoms
• Those who have had previous breast injections or surgery, without a specialist review

Screening

Tell any imaging team you have had threads. Breast screening should continue as recommended for your age and risk.

Questions to ask

• What would make me a poor candidate?
• How common are complications in your practice?
• What is your plan if I develop a lump or infection?